TV default doesn't update on each page

181 Posts

outdoorsadv Reply #1, 12 years, 8 months ago

Currently running modx 2.1.3-pl

I have created a template variable called right column. The purpose of this template variable is to display the content in the right column. I setup the default input to be a line of code to retrieve rss feeds. I updated my rss feeds to retrieve multiple feeds.

The pages I have already created don't update using the default. Is there a way to update all the resources that use the default input on the template variable?

MODX Staff
10,725 Posts

opengeek Reply #2, 12 years, 8 months ago

If they are using the default there should be no issue; if you have set specific values for each Resource to which the TV is accessible, then you will need to reset the Resource-specific value to the default.

Jason Coward
Chief Architect @ MODX
http://www.jasoncoward.com | http://twitter.com/drumshaman | https://github.com/opengeek

181 Posts

outdoorsadv Reply #3, 12 years, 6 months ago

That is just it. I have made changes to the default input in the TV. I copy it and paste it into the homepage.

The default and homepage now have the same thing entered into the TV. If I make a change to the default input, it doesn't change on the homepage. Why not?

24,544 Posts

BobRay Reply #4, 12 years, 6 months ago

Every page has its own value for a TV. It the page value matches the default value, the page value is not set (because the default value will be used when it's empty).

If you manually enter the value of a TV for a specific page, that's the value for that page from then on, regardless of what you do to the TV. The only exceptions are changing the template or deleting the TV.

Because of the way it works, it's really best to think of the TV's default value as only applying when you create a new page.

That said, it often works well to set the TV to:

@INHERIT some_value

That way it will inherit any page value set in an ancestor but get "some_value" if no ancestor has a page value for the TV.

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181 Posts

outdoorsadv Reply #5, 12 years, 6 months ago

Thanks bob. Is there a way that I can set a value on the page with the TV that will reference the default value?

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BobRay Reply #6, 12 years, 6 months ago

If you don't set a value on the page at all, the default value should be used.

You could also create a snippet that would pull the default value. That would save you from having to edit all the values (replace 12 with the ID of the TV).

[[!GetTvDefault? &tv=`12`]]

<?php 
/* GetTvDefault snippet */
$tvObj = $modx->getObject('modTemplateVar', $scriptProperties['tv']);

if ($tvObj) {
    return $tvObj->get('default_text');
} else {
   return 'TV Not Found';
}

I think this would also work as a custom modifier, though it would be a little slower:

[[*MyTv:GetTvDefault]]

<?php 
/* GetTvDefault custom output modifier */
$tvObj = $modx->getObject('modTemplateVar', array('name' => $scriptProperties['name']));

if ($tvObj) {
   $output =  $tvObj->get('default_text');
} else {
   $output = 'TV not found';
}
  return $output;

[ed. note: BobRay last edited this post 12 years, 6 months ago.]

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181 Posts

outdoorsadv Reply #7, 12 years, 6 months ago

BobRay,

The snippet works awesome!!! Thank you so much for your help. This will certainly solve a lot of issues with similarities throughout my site.

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BobRay Reply #8, 12 years, 6 months ago

I'm glad it worked. Thanks for reporting back.

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